#include <stdio.h>

int main(int argc, char* argv[]){
	if (argc != 2){
		printf ("Usage: %s <string>\n", argv[0]);
		return 0;
	}
	if (argv[1][0] > 'A' && argv[1][0] < 'Z'){
		printf ("%c is un upper-case letter (A-Z)\n", argv[1][0]);
	} else {
		printf ("%c is NOT un upper-case letter (A-Z)\n", argv[1][0]);
	}
	return 0;
}
